Sample processing disk cover



FIG. 1 is a perspective view of a sample processing disk cover, showing the new design.

FIG. 2 is a top plan view thereof;

FIG. 3 is a side elevational view thereof; and,

FIG. 4 is a bottom plan view thereof.

The broken lines in the drawing views are included for the purpose of illustrating portions of the sample processing disk cover that form no part of the claimed design. 

The ornamental design for a sample processing disk cover, as shown and described. 